package com.xzh.gulimall.cart.controller;

import com.xzh.common.constant.AuthServerConstant;
import com.xzh.common.constant.CartConstant;
import com.xzh.gulimall.cart.interceptor.CartInterceptor;
import com.xzh.gulimall.cart.service.CartService;
import com.xzh.gulimall.cart.vo.Cart;
import com.xzh.gulimall.cart.vo.CartItem;
import com.xzh.gulimall.cart.vo.UserInfoTo;
import org.bouncycastle.math.raw.Mod;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpSession;
import java.util.List;
import java.util.concurrent.ExecutionException;

@Controller
public class CartController {
    @Autowired
    CartService cartService;

    @GetMapping("/currentUserCartItems")
    @ResponseBody
    public List<CartItem> getCurrentUserCartItems()
    {
        List<CartItem> userCartItems = cartService.getUserCartItems();
        System.out.println(userCartItems);
        return userCartItems;
    }

    /*浏览器有一个cookie：user-key ,用于表示用户身份，一个月后过期
    * 如果第一次使用京东的购物车功能，都会给一个临时的购物车功能
    * 浏览器以后保存，每次访问都会带上
    * 如果登录 session有
    * 没登陆，按照cookie中的user-key来做
    * 如果没有临时用户，帮忙创建一个临时用户 */
    @GetMapping("/cart.html")
    public String cartListPage(Model model) throws ExecutionException, InterruptedException {
        //快速得到用户信息  id 、user-key
        Cart cart = cartService.getCart();
        model.addAttribute("cart",cart);
        return "cartList";
    }


    /*添加商品到购物车*/
    @GetMapping("/addToCart")
    public String addToCart(@RequestParam("skuId") Long skuId, @RequestParam("num") Integer num, RedirectAttributes ra)
            throws ExecutionException, InterruptedException {
        CartItem cartItem = cartService.addToCart(skuId,num);

        ra.addAttribute("skuId",skuId);
        return "redirect:http://cart.xzhmall.com/addToCartSuccess.html";
    }
    @GetMapping("/addToCartSuccess.html")
    public String addToSuccessPage(@RequestParam("skuId") Long skuId, Model model)
    {
        //重定向到成功页面、再次查询购物车数据即可
        CartItem item = cartService.getCartItem(skuId);
        model.addAttribute("item",item);
        return "success";
    }
    @GetMapping("/countItem")
    public String countItem(@RequestParam("skuId") Long skuId,
                            @RequestParam("num") Integer num)
    {
        cartService.changeItemCount(skuId,num);
        return "redirect:http://cart.xzhmall.com/cart.html";

    }

    @GetMapping("/deleteItem")
    public String deleteItem(@RequestParam("skuId")Long skuId){
        cartService.deleteItem(skuId);
        return "redirect:http://cart.xzhmall.com/cart.html";
    }
    @GetMapping("/checkItem")
    public String checkItem(@RequestParam("skuId") Long skuId,
                            @RequestParam("check") Integer check)
    {
        cartService.checkItem(skuId,check);
        return "redirect:http://cart.xzhmall.com/cart.html";

    }
}
